/**
 * Copyright (c) 2004-2006, Martin Fiedler.  All rights reserved.
 * Copyright (c) 2012, Ken Anderson.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **/
 
#include "common.h"
//#include "params.h"
//#include "main.h"

frame *alloc_frame(int width, int height) {
  frame *f=calloc(1,sizeof(frame));
  f->Lwidth=f->Lpitch=width;
  f->Lheight=height;
  f->L=malloc(width*height);
  f->Cwidth=f->Cpitch=width>>1;
  f->Cheight=height>>1;
  f->C[0]=malloc(width*height/4);
  f->C[1]=malloc(width*height/4);
  return f;
}

void free_frame(frame *f) {
  if(!f) return;
  if(f->L) free(f->L);
  if(f->C[0]) free(f->C[0]);
  if(f->C[0]) free(f->C[1]);
  free(f);
}
